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M46, NGC2438

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Object Notes:
  • m46
  • Constellation: Puppis
  • Location: RA: 07h 41m 47.9s Dec: -14d 49' 00" Epoch 2000
  • Size: 27.0 arc-minutes
  • Magnitude: 6.1
  • Type: Open Cluster with Planetary Nebula
  • AKA: ngc2437
  • ngc2438
  • Constellation: Puppis
  • Location: RA: 07h 41m 47.9s Dec: -14d 44' 00" Epoch 2000
  • Size: 65.0 arc-seconds
  • Magnitude: 11.0
  • Type: Planetary Nebula
  • AKA: PK 231+4.2
Instrument:
Ritchey-Chretien 32" Telescope
Focal Ratio:
f7.2 (prime focus)
Camera:
SBIG STL-11000 CCD camera
(See product review in July, 2004 issue of Sky & Telescope magazine.)
Exposure:
12 x 1 minutes Luminance unbinned
9 x 1 minutes each R/G/B unbinned
(Mosaic of two images)
Guiding:
Off-Axis with STV Autoguider (Santa Barbara Instrument Group)
(See product review in May, 2003 issue of Astronomy magazine.)
See Photo/Guiding Equipment.
Date:
2/02/05
Post Processing:
CCDSoft, CCDSharp, MaxIM DL, Photoshop CS